CD4 cells is a type of lymphocyte (white blood cell). They are a paramount part of the immune system. CD4 cells are sometimes called T-cells.
There are two main types of T-cells.
T-4 cells, also called CD4, are “helper” cells. They lead the assailment against infections.
T-8 cells (CD8) are “suppressor” cells that end the immune replication. Additionally, CD8 cells can acts as “killer” cells that kill cancer cells and cells infected with a virus.
Scientific Researchers can tell these cells apart by categorical proteins on the cell surface. A T-4 cell is a T-cell with CD4 molecules on its surface. This type of T-cell is withal called “CD4 positive,” or CD4.
WHY ARE CD4 CELLS PARAMOUNT IN HIV?
When someone have the HIV virus in him or her but has not commenced treatment, the number of CD4 cells they have reduces. This is a designation that the immune system is being debilitated.
The smaller the CD4 cell count, the more likely the person tends to get sick. There are millions of different families of CD4 cells. Each family is made to fight a specific type of germ.
When HIV reduces the number of CD4 cells, some of these families can be wiped out. You can lose the faculty to fight off the particular germs those families were designed for. If this transpires, you might develop opportunistic infection.